package edu.nps.moves.dis7;

import java.io.*;

/**
 * Angular velocity measured in radians per second out each of the entity's own
 * coordinate axes. Order of measurement is angular velocity around the x, y,
 * and z axis of the entity. The positive direction is determined by the right
 * hand rule. Section 6.2.7
 *
 * Copyright (c) 2008-2016, MOVES Institute, Naval Postgraduate School. All
 * rights reserved. This work is licensed under the BSD open source license,
 * available at https://www.movesinstitute.org/licenses/bsd.html
 *
 * @author DMcG
 */
public class AngularVelocityVector extends Object implements Serializable {

    /**
     * velocity about the x axis
     */
    protected float x = (float) 0;

    /**
     * velocity about the y axis
     */
    protected float y = (float) 0;

    /**
     * velocity about the zaxis
     */
    protected float z = (float) 0;

    /**
     * Constructor
     */
    public AngularVelocityVector() {
    }

    public int getMarshalledSize() {
        int marshalSize = 0;

        marshalSize = marshalSize + 4;  // x
        marshalSize = marshalSize + 4;  // y
        marshalSize = marshalSize + 4;  // z

        return marshalSize;
    }

    public void setX(float pX) {
        x = pX;
    }

    public float getX() {
        return x;
    }

    public void setY(float pY) {
        y = pY;
    }

    public float getY() {
        return y;
    }

    public void setZ(float pZ) {
        z = pZ;
    }

    public float getZ() {
        return z;
    }

    public void marshal(DataOutputStream dos) {
        try {
            dos.writeFloat((float) x);
            dos.writeFloat((float) y);
            dos.writeFloat((float) z);
        } // end try 
        catch (Exception e) {
            System.out.println(e);
        }
    } // end of marshal method

    public void unmarshal(DataInputStream dis) {
        try {
            x = dis.readFloat();
            y = dis.readFloat();
            z = dis.readFloat();
        } // end try 
        catch (Exception e) {
            System.out.println(e);
        }
    } // end of unmarshal method 

    /**
     * Packs a Pdu into the ByteBuffer.
     *
     * @throws java.nio.BufferOverflowException if buff is too small
     * @throws java.nio.ReadOnlyBufferException if buff is read only
     * @see java.nio.ByteBuffer
     * @param buff The ByteBuffer at the position to begin writing
     * @since ??
     */
    public void marshal(java.nio.ByteBuffer buff) {
        buff.putFloat((float) x);
        buff.putFloat((float) y);
        buff.putFloat((float) z);
    } // end of marshal method

    /**
     * Unpacks a Pdu from the underlying data.
     *
     * @throws java.nio.BufferUnderflowException if buff is too small
     * @see java.nio.ByteBuffer
     * @param buff The ByteBuffer at the position to begin reading
     * @since ??
     */
    public void unmarshal(java.nio.ByteBuffer buff) {
        x = buff.getFloat();
        y = buff.getFloat();
        z = buff.getFloat();
    } // end of unmarshal method 


    /*
  * The equals method doesn't always work--mostly it works only on classes that consist only of primitives. Be careful.
     */
    @Override
    public boolean equals(Object obj) {

        if (this == obj) {
            return true;
        }

        if (obj == null) {
            return false;
        }

        if (getClass() != obj.getClass()) {
            return false;
        }

        return equalsImpl(obj);
    }

    /**
     * Compare all fields that contribute to the state, ignoring transient and
     * static fields, for <code>this</code> and the supplied object
     *
     * @param obj the object to compare to
     * @return true if the objects are equal, false otherwise.
     */
    public boolean equalsImpl(Object obj) {
        boolean ivarsEqual = true;

        if (!(obj instanceof AngularVelocityVector)) {
            return false;
        }

        final AngularVelocityVector rhs = (AngularVelocityVector) obj;

        if (!(x == rhs.x)) {
            ivarsEqual = false;
        }
        if (!(y == rhs.y)) {
            ivarsEqual = false;
        }
        if (!(z == rhs.z)) {
            ivarsEqual = false;
        }

        return ivarsEqual;
    }
} // end of class
